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uid: input-system-device-capabilities
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# Device capabilities

Part of the Device description can be a [`capabilities`](xref:UnityEngine.InputSystem.Layouts.InputDeviceDescription) string in JSON format. This string describes characteristics that help the Input System to interpret the data from a Device, and map it to Control representations. Not all Device interfaces report Device capabilities. Examples of interface-specific Device capabilities are [HID descriptors](hid-specification-introduction.md). Web, Android, and Linux use similar mechanisms to report available Controls on connected gamepads.